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Method and device for configuring physical hybrid automatic repeat request indication channel

A technology for automatic retransmission request and channel indication, which is applied in the field of mobile communication to achieve the effects of improving transmission power, solving the problem of transmission reliability and improving transmission efficiency.

Inactive Publication Date: 2017-06-13
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is used to solve the transmission reliability problem of PHICH at the receiving end of out-of-band mobile relay or higher version in high-speed mobile scenarios

Method used

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  • Method and device for configuring physical hybrid automatic repeat request indication channel
  • Method and device for configuring physical hybrid automatic repeat request indication channel
  • Method and device for configuring physical hybrid automatic repeat request indication channel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] This embodiment is aimed at the situation that one PHICH group is only configured for one out-of-band mobile relay. In this embodiment, there are three out-of-band mobile relays under the coverage of the base station and simultaneously in the link state, marked as MR1, MR2 and MR3. MR1 and MR2 transmit one transport block (TB) uplink, and MR3 transmits two TB uplink.

[0062] Step 101, the base station configures PHICH group 0, 1, and 2 to MR1, MR2, and MR3 respectively by using high-level signaling, and agrees with each MR on the corresponding relationship between the PHICH index number in the PHICH group and each MR;

[0063] The base station and each MR have agreed with each other in advance that when 1 TB is transmitted uplink, the PHICH index number in the PHICH group is fixed to PHICH index 0; Fixedly use PHICH index 0 and 1; when uplink transmits 2 TB and binds feedback, the PHICH index number in the PHICH group is fixed to use PHICH index 0.

[0064] Step 102,...

Embodiment 2

[0071] This embodiment is aimed at the situation that one PHICH group is only configured for use by two out-of-band mobile relays. In this embodiment, there are 4 out-of-band mobile relays under the coverage of the base station and simultaneously in the link state, marked as MR1, MR2, MR3 and MR4. MR1 and MR2 transmit 1 TB uplink, and MR3 and MR4 transmit 2 TB uplink. The PHICHs of MR1 and MR3 are multiplexed in one PHICH group, and the PHICHs of MR2 and MR4 are multiplexed in one PHICH group.

[0072] Step 201, the base station configures the PHICH group index number and the PHICH index number for each MR by using high-level signaling;

[0073] The base station configures PHICH group 0 to MR1 and MR3, and configures PHICH group1 to MR2 and MR4 by using high-layer signaling.

[0074]In PHICH group 0, the base station configures PHICH index 3 to MR1, and configures PHICH index 6 and 7 to MR3 (no binding feedback).

[0075] In PHICH group 1, the base station configures PHICH ...

Embodiment 3

[0083] This embodiment is aimed at the situation that one PHICH group is only configured for use by four out-of-band mobile relays. In this embodiment, under the coverage of the base station, the number of out-of-band mobile relays in the link state at the same time is 8, marked as MR1, MR2, ..., MR8, and each MR uplink transmission is 2 TB. The base station divides the 8 MRs into two groups, and maps their downlink feedback to corresponding PHICH groups.

[0084] Step 301, the base station first configures a PHICH group index number and a PHICH index number for each MR by using high-level signaling;

[0085] The base station configures PHICH group 0 to MR1, MR3, MR6 and MR8, and configures PHICH group1 to MR2, MR4, MR5 and MR7.

[0086] In PHICH group 0, the base station configures PHICH index 0 and 1 to MR1, configures PHICH index 2 and 3 to MR3, configures PHICH index 4 and 5 to MR6, and configures PHICH index6 and 7 to MR8, (no binding feedback ).

[0087] In PHICH gro...

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Abstract

The invention discloses PHICH (physical hybrid ARQ indicator channel) configuration method and device and solves the problem of transmission reliability in PHICH from out-of-band mobile relaying or higher-version receiving ends in high-speed mobile environments. By decreasing the number of multiplexing receiving ends in one PHICH group, transmitted power of downlink feedback from each receiving end is increased, accurate receiving of PHICH is guaranteed for the out-of-band relaying or higher-version receiving ends is guaranteed, transmitting efficiency of a whole communication system is improved, and the problem of transmission reliability in PHICH from the out-of-band mobile relaying or higher-version receiving ends in high-speed mobile environments is well solved. The method and device are well applicable to out-of-band relaying or higher-version receiving ends.

Description

technical field [0001] The present invention relates to the field of mobile communication, in particular to a configuration method of a Physical Hybrid Automatic Repeat Request Indicator Channel (PHICH) in an advanced Long Term Evolution (LTE-A) system in 3GPP and device. Background technique [0002] The Long Term Evolution (LTE) system, the Long Term Evolution Advanced (LTE-Advanced, LTE-A) system and the International Mobile Telecommunication Advanced (IMT-Advanced) system all use OFDM (OFDM) Based on Orthogonal Frequency Division Multiplexing (OFDM) technology, the OFDM system is a time-frequency two-dimensional data form. 1 subframe (subframe) is composed of 2 slots (slots), when the normal cyclic prefix (Normal Cyclic Prefix, Normal CP), each slot is composed of 7 OFDM symbols; when the extended CP (Extended CP), each slot It consists of 6 OFDM symbols. [0003] For the convenience of description, the following describes several terms and definitions in the LTE / LTE-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04L1/18H04L1/16
Inventor 袁明毕峰梁枫杨瑾吴栓栓
Owner ZTE CORP